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DIODE

Diode is a semiconductor material made ​​from a material called PN junction that is a material consisting of a mixture of positive material (P type) and negative material (N type). Diodes function to a current in one direction but the directional opposites.

Positive material (P type) are compounds consisting of Germanium or Silicon to Aluminium with nature and the lack of positive electrons. Whereas negative material (N type) are compounds consisting of Germanium and Phosphorus which has the advantage of negative electrons.

Diode is a component that consists of 2 feet, as the symbol.


In the visible image of the P type material is formed feet called feet anode (A) and part of the N type material from the material will form the cathode (K)

On the diode, an electric current can only flow from pole to pole cathode while the anode current flows from the cathode will be retained by the Anode. With the principle of such a diode can be used as:
  1. Rectifier current and voltage.
  2. Voltage surge protector and electric.
  3. Blocker current and voltage.

Also in this series are also used light-emitting diode (LED) that functions as an indicator of whether or not the circuit is active.

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